<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <title>jQuery进门</title>
    <script type="text/javascript" src="../js/jquery-3.3.1.js"></script>
    <script type="text/javascript">
        $(document).ready(function () {
           alert("hello Master!")
        });

    </script>
</head>
<body>

</body>
</html>